baber/WOPTO huggingface dataset:
Patent GB-1067678-A (GB)
Title: Improvements in apparatus for measuring electrical current
Inventor: PUNNETT SIDNEY WALLACE
IPC: G01R15/18
Filed: 1962-11-01
Abstract: 1,067,678. Measuring D.C. current. UNIVERSITY OF SOUTHAMPTON and BRITISH PETROLEUM CO. Ltd. Oct. 9, 1963 [Nov. 1, 1962], No. 41360/62. Heading G1U. [Also in Division H3] Apparatus for measuring direct current flowing in a bar form conductor 15 such as a pipe comprises a magnetic transducer including a closed loop magnetic flux circuit, 11 which is placed around the conductor, an input circuit consisting of windings 12a and 12b to which A. C. from a source 13 is applied to saturate the magnetic circuit and an output circuit 14 which provides a signal indicative of the current in the conductor 15. An arrangement for eliminating any error signal in the output circuit is provided externally to the transducer and includes squaring, amplifying and phase and amplitude control circuits 19, 20, 21, to derive from the A. C. supply source 13 a balancing signal of the same form and amplitude as the error signal. The balancing signal is subtractively combined in the differential amplifier 18 with the transducer output, so that the output from the amplifier 18 accurately indicates the current in the conductor 15. The magnetic transducer consists of two magnetic cores 11a and 11b upon which symmetrical input windings 12a and 12b are provided, these windings being arranged to provide opposing flux in the cores. If perfect symmetry is achieved no signal will appear on the output winding 14 in the absence of a current on conductor 15 when the input windings are supplied from the generator 13. Any signal which does appear is fed to a filter 16 which blocks signals of the same frequency as the supply 13, the remainder being passed to the amplifier 17 where the second harmonic of the supply is selectively amplified and passed to the difference amplifier 18. The control circuit 21 in the path of the signal which is fed directly via the circuits 19, 20, 21, is adjusted so that in the absence of current in the conductor 15, zero output is indicated on the meter 22 in the output circuit of the amplifier 18. When a direct current is passed through the conductor 15, the flux patterns in the cores 11a and 11b are affected so that an output appears on the winding 14. This output is passed through the stages 16, 17, 18 previously described and is measured on the meter 22.
Patent GB-879425-A (GB)
Title: Choleretic, non-cholagogic agents containing alpha-(hydroxy-phenylcyclohexyl) butyric acids
IPC: A61K31/19
Filed: 1959-12-08
Abstract: The invention comprises compounds of the general formula: <FORM:0879425/IV (b)/1> wherein R is -CHEt-COOH., and the non-toxic alkali metal salts and the ethyl and methyl esters thereof together with certain pharmaceutical compositions containing alpha- (1- hydroxy-4- phenylcyclohexyl-1)-butyric acid and its salts (see Group VI).  The compounds may be prepared by reacting a phenylcyclohexanone and ethyl alphabromobutyrate in the presence of elemental zinc to form the ester and hydrolysing this to the free acid.ALSO:A composition in tablet form comprises a pharmaceutical carrier and at least 15 milligrams of alpha - (1 - hydroxy - 4 - phenylcyclohexyl - 1) - butyric acid, and in injectable form comprising an aqueous injectable pharmaceutical carrier and at least 30 milligrams of a water-soluble non-toxic, pharmacologically acceptable salt of the said acid.
Patent GB-1011192-A (GB)
Title: Improvements in and relating to the production of gaseous mixtures
IPC: B01J7/02
Filed: 1963-10-23
Abstract: 1,011,192. Storing and re-vaporizing gases. WALTER KIDDE CO. Ltd. (Walter Kidde & Co. Inc.]. Oct. 23, 1963, No. 41781/63. Heading F4P. [Also in Division F1] An apparatus for producing a mixture of gases under pressure comprises a container holding a pressurized refrigerant and having an outlet at one end provided with a closure disc, a chamber at the end opposite the outlet containing a combustible charge to generate hot gases, a baffle chamber at the side of the closure disc facing the interior of the container and including a central opening and openings surrounding the central opening in communication with the interior of the container, and a hot gas distributer tube having an inlet connected to the combustion chamber and outlet openings for directing hot gases into the container to thoroughly mix the hot gases and the refrigerant and an end outlet for directing hot gases into the baffle chamber central opening. A gas generator for producing a gaseous mixture under pressure suitable for inflating an inflatable device comprises a cylindrical container 15 holding pressurized liquid carbon dioxide acting as a refrigerant with the possible addition of ethyl alcohol. A chamber 19 contains a combustible powder 20 which is ignited by a squib 21 to discharge hot gases through a frangible disc 27 to a pipe 22. Angularly spaced outlets 39 and an orifice 35 leading to a pipe 30 direct hot gases to all parts of the container 15 to vaporize and evenly mix with the refrigerant. Pipe 22 also leads into a further pipe 34 which is supported by a baffle chamber 32 associated with the container outlet assembly 16 including a frangible disc 18. Hot gases from the pipe 34 flow through inclined outlets 47 in the pipe and are deflected by curved surfaces 46 of baffle chamber end wall 42. Hot gases also flow from pipe 34 to the interior of baffle chamber 32 through an orifice 44. The mixed and cooled gases flow into baffle chamber 32 through holes 41 and thence to the inflatable device through pipe 12. A safety valve 24 with a frangible disc 25 is provided. Quantitative figures for orifice dimensions, refrigerant weights &c. are quoted.
Patent GB-984902-A (GB)
Title: Improvements in drawtwister and draw-winder machines for processing synthetic textile filaments
Inventor: WHITTAKER HAROLD
IPC: A61K31/55
Filed: 1962-11-05
Abstract: 984,902. Stretching polyolefine filaments. T.M.M. (RESEARCH) Ltd. Dec. 10, 1963 [Nov. 5, 1962], No. 41837/62. Heading B5B. A drawtwister or draw-winder machine for the treatment of polypropylene or other polyolefins including spaced first and second draw rolls and a heater plate in contact with-which the filaments are conducted in their path between said draw rolls, is characterized in that a freely rotatable roller is mounted in close proxity to that end of the heater plate remote from the first draw roll in such a way that the axis of the control roller is inclined to the face of the heater plate such that the filaments are constrained by contact with said roller to maintain a tape formation of substantially constant width whilst traversing the heater plate. The angle of inclination of the roller axis to the face of the heater plate is preferably 10- 30 degrees, and the angular setting of the roller may be adjustable. In one embodiment, a bundle of filaments passes round first feed roll A, over heater plate B, and is constrained in a ribbon or tape-like formation by roller D, before reaching second draw roll C. The The axis of roller D may or may not be normal to the path of the filaments, provided the axis is inclined to the face of the heater plate. The roller, made of e.g. matt-surfaced chromiumplated steel, is cylindrical, but its perpheral surface may be concave or convex.
Patent GB-1526438-A (GB)
Title: Electrical contact probe arrangements
IPC: H01L21/66
Filed: 1975-10-14
Abstract: 1526438 Probe arrangements INTERNATIONAL BUSINESS MACHINES CORP 14 Oct 1975 [12 Dec 1974] 41960/75 Heading H2E A support 15 carrying a plurality of electrical probe heads 14 is made of a material which expands when heated and is provided with a resistive heating element 27 in order that the separation of the probe heads may be varied to correspond to the separation of terminals on a substrate incorporating multiple semiconductor chips to be tested, thereby allowing for tolerances in the substrate dimensions.
Patent GB-1299445-A (GB)
Title: Improvements in or relating to apparatus for harvesting root crops
Inventor: TOULE KEITH
IPC: A01D17/16
Filed: 1969-08-22
Abstract: 1299445 Root crop harvesters K TOULE 15 July 1970 [22 Aug 1969] 41992/69 Heading A1F [Also in Division B2] A root-crop harvester comprises an openended rotating, drum of apertured construction, through which the crop passes. A share 27 lifts the crop, which is carried to the drum 38 by the main and auxiliary lifting conveyors 17, 18. The facing laps of these conveyors are substantially parallel, travelling in the same direction at substantially the same speed, and their lower portions are relatively adjustable by the bracket 37. The share pivots about the lower shaft of the main lifting conveyor enabling its angle to be varied by the turnbuckle device 31. The frames 19, 21 of the lifting conveyors are carried by the rod 24, passing through the main framework 11, which is fitted with an adjustable compression spring 26 serving to support a substantial part of the weight. The drum is made up of axially-spaced hoops 42 held in place by circumferential bars 43, and fitted with spaced annuli 44 which enable the drum to be rotated by pairs of rollers 45, thus causing a tumbling action in which loose soil is shaken from the crop. The drum lies horizontally and the crop passes through by means of a multi-start helical conveyor 41, formed with a series of spaced fingers 47. These fingers serve to lift tops or other leaf matter, dropping them on to a disposal conveyor 48 passing through the drum, whilst the crop passes into a further lifting conveyor 49 in the shape of a wheel. This wheel is rotated in a similar manner to the drum, by means of channels 51 and rollers 52, and is provided with a series of lifting blades 53 which transport the crop and deposit it on to a main sorting conveyor 54 passing through the upper part of the wheel. The crop is maintained between the blades in the upper part of its path by one lap of an endless guide belt 57. Above this conveyor 54 is a series of adjustable rotatable brushes 59, 60, 61, rotating such that their lower peripheries move in an opposite direction to that of the upper lap of the conveyor. The brushes are arranged to collect different sizes of crop and deposit them in distinct lanes on a manual sorting conveyor 62 'where any remaining stones are removed. The sorted crop is transported to a delivery conveyor 63 and thence to a chute 64, whereas small stones and small sizes of crop pass under the third brush 61 and are carried to a disposal chute 56. The harvester is towed behind a tractor, and has two shares 27 to deal with two ridges at the same time.
Patent GB-997433-A (GB)
Title: Improved starting arrangement for single-phase induction motors
Inventor: EISERT WERNER
IPC: H02P1/44
Filed: 1961-11-24
Abstract: 997,433. Control of A.C. motors; electromagnetic relays. LICENTIA PATENTVERWALTUNGS-G.m.b.H. Nov. 24, 1961, No. 42143/61. Headings H2B and H2J. A starting arrangement for a single phase induction motor having a main winding Ha and an auxiliary starting winding Hi comprises a series circuit formed by the winding Hi, a capacitor KB and a relay coil R and connected in parallel with the winding Ha, a second capacitor KA and contacts RK in series therewith being arranged in parallel with the capacitor KB and coil R. The contacts RK open when a predetermined minimum value of current passes through the coil R. The relay comprises a two-part housing 5 and L-shaped stationary contacts 6, 7 bridged by a moving contact 9, the contacts opening when a coil 8 is energized. Contact pressure is exerted by the weight of an armature 10 through a compression spring 11, the armature sliding along a sleeve 12 held on a centre pin 13. The ratio between the current values at which the contacts are opened and closed can be set by adjusting the position of a ferromagnetic core carried on the pin 13. When coil 8 is energized and armature 10 is initially attracted contact 9 is held in the closed position, while spring 11 expands, until the top of the armature hits a flange at the upper end of sleeve 12. The contact 9 is then lifted off the contacts 6, 7 by a flange at the lower end of the sleeve 12.
Patent GB-1319124-A (GB)
Title: Extraction of hydrogen peroxide
IPC: C01B15/023
Filed: 1970-09-03
Abstract: 1319124 Hydrogen peroxide DEUTSCHE GOLD-UND SILBER-SCHETDEANSTALT 3 Sept 1970 [10 Sept 1969] 42196/70 Heading C1A Hydrogen peroxide is extracted from a working solution of the alkyl anthraquinone process which is of lower specific gravity than water and which is the dispersed phase in extraction stage by introducing the working solution into the lower end of one or more unfilled extraction (spray) columns equipped at their lower ends with mechanical means for dispersing the working solution (e.g. sieve plates), introducing aqueous extraction medium at the upper end of the column and running off crude extraction product at the lower end of the column and extracted working solution at the upper end of the column. The working solution may contain aromatic petrols and phosphoric acid or phosphoric acid esters as solvent.
Patent GB-1402025-A (GB)
Title: Optical projection system
IPC: G03B27/36
Filed: 1972-09-12
Abstract: 1402025 Projection printing EASTMAN KODAK Co 12 Sept 1972 [13 Sept 19711 42364/72 Heading G2A An image of variable magnification is projected on to a fixed print plane 53 from a transparency 47 carried in a carriage 21 with the aid of a lens system 49 carried in a second carriage 23, the carriages being slidable on a common guide bar 25, being connected by a constant tension spring 27, and being correctly spaced by means of a bellcrank which is pivotally connected to an arm 37 of the lens carriage 23, has one arm slidable within a forked arm 33 of transparency carriage 21 and has the other arm slidable within a suitably shaped cam groove 31. The lens carriage may be driven directly, e.g. by a chain belt drive.
Patent GB-1382177-A (GB)
Title: Needle bearing cages
IPC: F16C9/04
Filed: 1972-09-13
Abstract: 1382177 Bearings SKF INDUSTRIAL TRADING & DEVELOPMENT CO BV 13 Sept 1972 [13 Sept 1971] 42532/72 Heading F2A In a needle valve bearing cage 1, the needles 2 are arranged in discrete groups 3, 3a of two or more around the cage, in each of which groups the needles are disposed substantially parallel to each other, successive groups of needles being inclined to one another in the plane of the circumferential surface of the cage when developed. A plurality of needles may be disposed in a single cage window. The cage may be for a connecting-rod bearing.
Patent GB-1165727-A (GB)
Title: Electrical Transformer
IPC: H01F27/32
Filed: 1966-09-23
Abstract: 1,165,727. Transformers. LICENTIA PATTENT - VERWALTUNGS - G.m.b.H. 23 Sept., 1966 [24 Sept., 1965], No. 42570/66. Heading H1T. An electrical transformer comprises a highvoltage winding, composed of an input layer with further layers outside it, all surrounding flanged screens 9, 19, 20 with successively larger outward-turned flanges 9<SP>1</SP>, 19<SP>1</SP>, 20<SP>1</SP>, and a low-voltage winding 10, which is surrounded by the high-voltage winding and the screens. Insulation is by paper cylinders with annular flanges at their ends, and the screens 9, 19, 20 may be interrupted cylinders of electrically conductive paper or of metal. Flange 9<SP>1</SP> has the smaller outer diameter end screen 9, which is continuous with it, is connected to the high-voltage input of the high-voltage winding. Other screens may be connected to intermediate points on the highvoltage winding. Further electrically conductive material, in the form of, for example, conductive sheathings on annular discs, may be incorporated in the insulation adjacent the flanges. Oil passages within the insulation may be bridged by placing screens either side of such a passage and connecting them electrically. Screens may also be included in low-voltage winding 10, with inward-turned flanges, and may be incorporated in the insulation separating the various layers of the high-voltage winding.
Patent GB-963400-A (GB)
Title: A method of and apparatus for use in determining steam moisture
Inventor: LISKA JIRI
IPC: G01N25/60
Filed: 1960-12-10
Abstract: 963,400. Determining the moisture content of steam. VYZKUMNY USTAV ENERGETICKY, PRAHA. Dec. 10, 1960, No. 42598/60. Heading G1S. Steam passing through a conduit is induced by means of an injector to enter a detector 1, Fig. 2, or controlled in its entry of means of a valve, not shown, at the exit 9 of the detector 1, according as the pressure of the steam is less than or greater than atmospheric, the detector having means 2a, 6a for measuring the initial pressure, P0, and temperature t0, an electrical heater 8 for superheating the moist steam to a stage of superheat higher than that where superheat begins, and means 2b, 6b for measuring the final pressure P1, and temperature t1. On a graph, Fig. 1, of enthalpy i against entropy s, the position B of superheat corresponding to values t1, P1 is determined and #i the change in enthalpy from moist to superheated steam can be calculated knowing from wattmeter 12 the power supplied to heater 8, and from device 14 the quantity of steam flowing. Thus position C is determined and from a reading of the initial pressure P0 the point A is found corresponding to a degree of moisture X0.
Patent GB-1204185-A (GB)
Title: Battery-powered appliance
IPC: B26B19/38
Filed: 1967-09-20
Abstract: 1,204,185. Dry shavers. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 20 Sept., 1967 [23 Sept., 1966], No. 42768/67. Heading B4B. [Also in Division F4] A dry shaver comprises a casing 1 containing a cutter or cutters driven by a D.C. motor powered by four batteries 3a to 3d held between upper spring contacts 4 and lower contacts 5 which are secured on a plate 6, the casing having an opening 18 covered by a detachable cover 9, the batteries 3c and 3d being removable by a manually operable U-shaped member 15 the limbs 14 of which are guided in channels 13 of a plate 12 secured to the plate 6, the limbs 14 being connected at one end by a transverse portion 15a and having at their other end portions 16 which lie behind the batteries 3c and 3d. When it is desired to renew the batteries, the cover 9 is removed and after the batteries 3a and 3b have been removed by the fingers, the portion 15a of the member 15 is pulled through the opening 18 so that the lower ends of the batteries 3c and 3d are displaced into positions in which they can readily be grasped by the fingers.
Patent GB-871040-A (GB)
Title: Tank for the storage of volatile liquids
IPC: F17C3/00
Filed: 1959-12-16
Abstract: 871,040. Tanks. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. Dec. 16, 1959 [Dec. 18, 1958], No. 42773/59. Class 69 (1). [Also in Group XXVIII] A tank for the storage of volatile liquids at or above the ambient pressure in which the roof 7 is a domed structure comprising a number of curved steel trusses 5, bolted to support members 2, themselves welded to the cylindrical tank wall 1. The radius of the trusses 5 varies continuously, being at least equal to half the radius of the tank at their lowest point and increasing to nearly infinity at their connection with the ring 6, forming an annulus 9 in the tank roof through which the tank may be emptied and filled. The trusses. are interconnected by cross-beams 8 and support the metal sheets which are welded together to form the tank roof 7.
Patent GB-1083109-A (GB)
Title: Cut-off tool with mechanical blade-clamping
IPC: B23B27/04
Filed: 1965-10-08
Abstract: 1,083,109. Tool-holders. ZAKLADY PRZEMYSLU METALOWEGO H. CEGIELSKI. Oct. 8, 1965 [Oct. 13, 1964], No. 42868/65. Heading B3B. A cut-off tool comprises a holder 1 having a side shoulder 10 which supports a blade 2, the shoulder 10 having on its upper face a groove 13 in which the blade 2 is slidably mounted, the blade being adjustably positioned by a regulating screw 3 at its rear end and clamped by a flanged member 4 which is tightened on to its upper face. A rib 11 forms a forward extension of the shoulder 10 and supports the projecting blade part. The side faces (7, 8) of the blade converge downwardly (Figs. 5, 6, 7, not shown) but are parallel in the length of the blade while the upper surface (9) is raked at an angle with respect to the base so that sharpening may be accomplished merely by sharpening the forward face (18) of the blade.
Patent GB-1202068-A (GB)
Title: Electrolytic cell for air purification
Inventor: MARZLUFF W F
IPC: B03C3/60
Filed: 1967-09-21
Abstract: 1,202,068. Electrolytic cells for air purification. AMERICAN CYANAMID CO. Sept. 21, 1967 [Sept.27, 1966], No.42967/67. Heading C7B. An electrolytic cell for air purification comprises a porous metal or metal oxide anode, a porous air cathode and an electroyte matrix pad impregnated with an acid e. g. H2 SO4 sandwiched between the two electrodes connected to a D. C. source. Stale or contaminated air is contacted with a single cell or through a plurality of cells connected in series or parallel. The anode may be a screen fabricated from PbO2, a perforated sheet of Pb or Pb+Bi or Pb+Sb alloy coated with a PbO2 layer, or Pt black or MnO2 supported on a Ta screen. The air cathode may be a Pt group metal, i.e. Pd, Rh, Ru, Os, Ir or Pt, or Au, which may be graphitized, porous C or graphite, graphitized polyethylene, methylmethacrylate or PTFE, preferably fabricated on a Ta screen. The matrix pad may be of filter paper, glass fibre, asbestos mat or polymeric ion exchange material.
Patent GB-1007525-A (GB)
Title: Improvements in or relating to extensible ladders
IPC: E06C5/04
Filed: 1961-12-04
Abstract: 1,007,525. Ladders. KLOCKNER-HUMBOLDT-DEUTZ A.G. Dec. 4, 1961 [Dec. 8, 1960], No. 43316/61. Heading A6L. In an extensible ladder the upper sections 1-3 are connected by ropes 15, 16, 18, 19 which connect the top of one section to the bottom of the next but one section the ropes 15, 16 passing over pulleys on top of the intermediate sections and ropes 18, 19 passing over pulleys at the bottom of the intermediate sections the lowest section 3 being raised by a rope 13 and a winch 8.
Patent GB-1486464-A (GB)
Title: Flat gasket
IPC: F16J15/12
Filed: 1974-10-09
Abstract: 1486464 Joint-making packing MOTORENUND TURBINEN - UNION FRIEDRICHSHAFEN GmbH 9 Oct 1974 [13 Oct 1973] 43747/74 Heading F2B A single sheet metal gasket having opposing surfaces substantially flat, is coated at least at an S-shaped marginal region 15 with a flourine containing plastics. At the high temperatures of use in the exhaust gas line of an I.C. engine, the plastics swells and melts to block any leakage.
Patent GB-1129524-A (GB)
Title: Improvements in and relating to the construction of lift shafts
IPC: E04F17/00
Filed: 1965-10-15
Abstract: 1,129,524. Prefabricated lift shaft elements. GEBAUER & CIE. 15 Oct., 1965 [15 Oct., 1964], No. 43862/65. Heading E1A. A prefabricated lift shaft element 1 of storey height is constructed of cast masonry or plastics and provided with a built-in lift shaft door frame 2 and centering members 3, 4. The elements are superimposed one upon another with the interposition of adjusting screws, pushing pieces and sealing concrete as necessary, see Fig. 2 (not shown). Fitments such as attachments 19 for the lift rails and push buttons for the lift may be incorporated into the element 1, 2 respectively. For slightly modified elements 1, cross-sectional shapes thereof and mode of manufacture the Specification should be referred to.